Results 11 to 20 of about 42 (42)

On a zonal polynomial integral

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 11, Page 569-573, 2003., 2003
A certain multiple integral occurring in the studies of Beherens‐Fisher multivariate problem has been evaluated by Mathai et al. (1995) in terms of invariant polynomials. However, this paper explicitly evaluates the context integral in terms of zonal polynomials, thus establishing a relationship between zonal polynomial integrals and invariant ...
A. K. Gupta, D. G. Kabe
wiley   +1 more source

Null distribution of multiple correlation coefficient under mixture normal model

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 30, Issue 4, Page 249-255, 2002., 2002
The multiple correlation coefficient is used in a large variety of statistical tests and regression problems. In this article, we derive the null distribution of the square of the sample multiple correlation coefficient, R2, when a sample is drawn from a mixture of two multivariate Gaussian populations.
Hydar Ali, Daya K. Nagar
wiley   +1 more source

Matrix‐variate beta distribution

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 7, Page 449-459, 2000., 2000
We propose matrix‐variate beta type III distribution. Several properties of this distribution including Laplace transform, marginal distribution and its relationship with matrix‐variate beta type I and type II distributions are also studied.
Arjun K. Gupta, Daya K. Nagar
wiley   +1 more source

Distribution of LRC for testing sphericity of a complex multivariate Gaussian model

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 8, Issue 3, Page 555-562, 1985., 1985
In this paper, exact null distribution of the likelihood ratio criterion for testing sphericity structure in a complex multivariate normal covariance matrix is obtained in computable series form. The method of inverse Mellin transform and contour integration has been used.
D. K. Nagar, S. K. Jain, A. K. Gupta
wiley   +1 more source

On the noncentral distribution of the ratio of the extreme roots of wishart matrix

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 4, Issue 1, Page 147-154, 1981., 1981
The distribution of the ratio of the extreme latent roots of the Wishart matrix is useful in testing the sphericity hypothesis for a multivariate normal population. Let X be a p × n matrix whose columns are distributed independently as multivariate normal with zero mean vector and covariance matrix ∑.
V. B. Waikar
wiley   +1 more source

Influence of Transfer Entropy in the Short-Term Prediction of Financial Time Series Using an ∊-Machine. [PDF]

open access: yesEntropy (Basel), 2022
Zavala-Díaz JC   +4 more
europepmc   +1 more source

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